FREE API EXPLORER

Provides global numerical weather forecasts derived from high-resolution models.

Public API for Aare river data including temperature, flow rate, and forecasts.

Provides pollutants and pollen forecast data.

An API from NOAA providing aviation weather forecasts and observations.

Provides machine-to-machine access to aviation weather data (METARs, TAFs).

Official API for Carbon Intensity data in Great Britain.

Provides real-time and 5-day hourly UV Index Forecast globally.

Provides current weather data for a specified location.

Provides simulated river discharge and flood forecasts.

An API from the HKO providing weather, earthquake, and climate data.

Provides predicted and actual air quality data for The Netherlands from RIVM.

A simple API for weather forecasts, location search, and weather icons.

Access real-time buoy readings and information from the National Data Buoy Center (NDBC).

An API providing weather data and access to weather webcams.

An open-source weather API with free access for non-commercial use.

A global weather forecast API for non-commercial use with no API key required.

Provides access to open, real-time, low-cost PM2.5 sensor data.

An API providing access to real-time air quality monitoring data from PurpleAir sensors.

An API providing radar data collected from different websites across the internet.

This API provides real-time weather readings from stations in Singapore.

Provides sunset and sunrise times for a given latitude and longitude.

The Official Carbon Intensity API for Great Britain developed by National Grid.

The official API for the US National Weather Service.

The UV Index API provides real-time data on ultraviolet index levels in Singapore.

A RESTful API to check the current weather by providing city names.

A free, simple, and RESTful API to check the weather.